Sight-feed oil-cup or lubricator



(No M'odeL) C. W. SHERBURNE.

SIGHT FEED OIL CUP 0R LUBRIGATOR.

No. 319,519. Patented June 9, 1885.

in which- Figure l is a vertical central section of a lubricator containing the i'eatures of my inllnirnn armar irren.

SIGHT-FEED OIL-CUP OR LUBRICATOR.

SPECIFICATICN forming part of Letters Patent No. 319,519, dated June 9, 1855.

Application [lied February i7, 1.885. (No model.)

T0 a/ZZ whom it may concern:

Be it known that I, CHARLES W. SHER- BURNE, of Boston, in the county of Suffolk and State of Massachusetts, a citizen of the United States, have invented a new and useful Improvement in Sight-Feed Oil-Cups or Lubricators, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification, in explaining` its nature,

vention. Fig. 2 is a horizontal section on the line x x of Fig. 1. Fig. 3 represents, in elevation, enlarged, a two-way cock of peculia-r construction, herein described. Fig. 4 is an elevation of said cock at right angles to that v shown in Fig. 3.

The invention is especially designed for use upon locomotives.

In the ordinary locomotive sight-fecd oilcup or lubricator much trouble has been caused by the cracking and breaking of the glass tubes of the sight-feed from the jar of the locomotives, and for various other reasons, for after the tube has been so broken the lubricator of course becomes inoperative; and my invention is designed to overcome the objection by providing the lubricator or oil-cup with a simple attachment, which operates to shut out the sight-feed passage from the remainder of the lubricator, and at the same time connects, by means of another passage, the oil-reservoir with the oil-delivery or escape pipe or tube, so that if the sight-feed becomes inoperative from any cause it does not prevent the conthe engine running the air-pump, or any other auxiliary engine.

Referring to the drawings, A represents the casing of the oil-cup. c is the reservoir for the oil or other lubricant. i3 is the waterinlet from the hydrostatic column or other source of supply. C is the passage closed by the screw-plug c, through which the lubricant M is supplied to the reservoir, and c is the passage closed by the valve c2, through which the water is drawn from the reservoir-chamber. There is arranged to extend from each side of the casing A the projections or arms c', which preferably are cast with the casing, but which may be made separately therefrom and screwed therein. rlhey each have the upward-extending sleeve c2, which receives thelower end ofthe glass tube a, forming the sight-feed chamber and lthe feed-passagec, each of which-has let into it, upon the inside of the casing, a supply tube, a5, which extends to the upper part of the chamber c.` The other ends of these passages a open into the nozzles c, which extends upward into the si ght-feed chambers, and there is in each arm a the screw-plug cock D, arranged to vcontrol the passage at. There projects from each side of the neck o7 or upper part of the casing of the chamber the arms E, in each of which is arranged the passage c, connecting the reservoir c with the deliverytubes, as hereinafter speciiied, and at the end of each arm is the down-extending sleeve e', through which and the end of the arm is a hole, c2, su'fiiciently large to allow the sightfeed glass a3 to be inserted and dropped into place. The upper part of this hole has a shoulder, e", a ilaring surface, et, and4 a Screwthread, e5. A two-way cock, F, having a conical or tapering surface, fits into the space c, the surface of which forms a seat for the inclined seat of the cock, and the cock is held in place by the screw-nut c, which screws upon the screw-thread e5. The cock has the operating-stem f and ahandle, f', the end f 2 of which is pointed or shaped different from the other end, so as to provide a pointer or means for indicating the position ofthe cock in relation to the passage c. Each cock has two passages or ways-one, f3, which extends through the cock and connects the sight-feed chamber with the outlet-passage G to the delivery-pipe g, (see Fig. 2,) and the other, f4, of which extends about the cock, :as represented in Figs. 3 and 4, from a point on one side of the passage f3 to point upon the other IOO side thereof, and this passage about the cock connects the passage e with the escape-passage g. In the horizontal section, Fig. 2, the right-hand cock is represented in position for connecting the sight-feed chamber with the passage G, and the left-hand cock is shown as connecting the passage e with the passage G. When the feed is through the sight feed chambers, the handles of the cocks are turned in the direction indicated at the right hand,

Fig. l, and the turning of the handle an` eighth of a turn in'either direction from this position serves to cut off the connection between the sight-feed chamber and the escapepassage and to connect the passage e there with.

In operation, if the cylinders of two engines are being lubricated the water dropping from the condensingchamber or hydrostatic column, or other source of water supply, enters through the inlet B into the water-chamber and lifts the oil or other lubricant, causing the oil, if the sight-feed chambers are used, to iow through the tubes, passages, and noz zles, and through the water in the sight-feed chambers and through the cocks to the oiloutlet passages, where it is fed by one pipe to the cylinders of the locomotive and by the other pipe to the'cylinder or cylinders of the other engine, and the rapidity or extent of the feed of the oil or otherlubricant is varied by the cock D. If, however, one or both of the sight-feed tubes become cracked or broken, or if for any reason the oil or other lubricant cannot be passed through them, or either of them, then the cocks are operated to close the passages d, and the upper cocks, F, turned to open the passages e into the escape-pas sages, and the oil or other lubricant will then, instead of passing through the tubes a5 to the sight-feed chambers, pass upward and outward through the passages e to the escape passages and pipes. Of course it is obvious that the lubricator may be adapted to supply a lubricant to the cylinder or cylinders of one engine only, in which case it will have but one sight-feed chamber and one set of passages and regulating cocks, and ofcourse by increasing the number of sight-feed passages, chambers, and cocks the cylinders of more than two engines may be provided with lubricating liquid from the same reservoir. It is apparent that if one only of the sight-feed chambers is broken or is not usable, itis only necessary to disconnect that chamber, as the other sight-feed chamber or chambers can be used in the ordinary way.

The'principal advantage of the invention arises from the fact that by the construction specified the lubricator is not disabled if the glass tube or tubes of the sight-feed chamber or chambers have been cracked or broken, or if any accident should have happened to stop the flow of oil through passages connecting the reservoir therewith.

I-Iaving thus fully described my invention, I claim and desire to secure by Letters Patent of the United States- In a sight-feed lubricator for locomotives, the combination of a sight-feed chamber, the

lpassage e, connecting the reservoir with the passage G, and a two-way cock, F, having the passage f 3, which connects the sight; feed chamber withthe escape-passage and the passage f", which is adapted to connect the passage e with the escape-passage, whereby the reservoir is connected with the escape-passage by two conduits or passages, both of which are controlled by the same valve, and the opening of one of which passages closes the other, al1 substantially as and for the purposes described.

GHARLES W. SHERBURNE.

Witnesses: F. F. RAYMOND, 2d, FRED. B. DoLAN. 

